In cables the charging current__________?
Correct answer: B. leads the voltage by 90°
- A. lags the voltage by 90°
- B. leads the voltage by 90°
- C. lags the voltage by 180°
- D. leads the voltage by 180°
Explanation
A cable behaves capacitively, and current in a capacitor leads its voltage by 90 degrees. Therefore, the charging current leads the voltage.
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